3 restrictions and descriptions, Restrictions and descriptions – H3C Technologies H3C S5820X Series Switches User Manual

Page 8

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3-1

3

Restrictions and Descriptions

Support for software functions on the S5800 series and S5820X series is different. Note the differences

mentioned in the following table when you configure these functions in a mixed IRF:

Table 3-1 Function matrix for the S5800 and S5820X

Function

S5800 series

S5820X series

Description

IP NetStream

Supported

Not supported

NetStream filter

Supported

Not supported

You can configure NetStream only on ports
of the S5800 series. If you configure it on a
port of an S5820X series, the system will
return a message saying that the feature is
not supported.

Cut-through
forwarding

Not supported

Supported

This function is based on the global
configuration and is only effective on the
S5820X series.

Note that if you execute the cut-through
command on the S5820X series, the Layer 3
forwarding and ACL functions will become
ineffective; therefore, you are recommended
to not use this function in a mixed IRF.

Priority-based
flow control

Not supported

Supported

You can configure this function only on the
10 GE ports of the S5820X series, and the
GE ports on the S5820X or ports on the
S5800 series do not support this function.

Hierarchical CAR

Supported

Not supported

Hierarchical CAR is configured globally. You
can apply a QoS policy containing
hierarchical CAR on the S5800 series
instead of the S5820X series.

For functions supported by both the S5800 series and the S5820X series, the implemented capabilities

are different. Note the differences mentioned in the following table when you configure these functions

in a mixed IRF:

Table 3-2 Function capability matrix of the S5800 and S5820X series

Functions

S5800 series

S5820X series

Mixed IRF of S5800 and S5820X

Inbound: 8K

Inbound: 2K

Number of ACL
entries

Outbound: 1K

Outbound: 512

When you apply QoS policies globally or for
specific VLANs, the application may be
successful on the S5800 series but may fail
on the S5820X series due to the differences
of the implemented capabilities.

You can use the display qos policy global
or display qos vlan-policy command to
display the QoS policy configuration
information and check whether the policy is
applied successfully on a member device.

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